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Suppose that scores on a particular test are normally distributed with a mean of 130 and a standard deviation of 19. What is the minimum score needed to be in the top 5% of the scores on the test? Carry your intermediate computations to at least four decimal places, and round your answer to at least one decimal place.
Can you please include spreadsheet to input numbers and compute answer? Thanks
Conduct post hoc comparisons with the LSD method. Which groups differ significantly at α = 0.05?
Find the proportion of employees who are managers and have MBA degrees.
Let Y be the number of envelopes for which the machine fails to remove a check. Using the Central Limit Theorem to approximate P{Y≤10}.
Complete the test at the 5% level of significance.
The New York Times reported (L.J> Flynn, Tax Surfing, The New York Times, March 25, 2002, p. C10) that the mean time to download the home page for the internal Revenue Service (IRS) , was 0.8 second. Suppose that the download time was normally di..
Develop a multiple regression model with categorical variables that incorporate seasonality for forecasting sales using the last three years of data in the Excel file New Car Sales.
Parents collected a simple random sample of the times that 81 college students required to earn their bachelor's degrees. The sample has a mean of 4.8 years and a standard deviation of 2.2 years. Use a 0.05 significance level to test the claim tha..
Determine a simple algebraic relationship between the negative binomial probability P(x) and the binomial probability for the probability of n successes in x trials.
Assume rf is 5% and rm is 10%. According to the SML and CAPM, an asset with a beta of -2.0 has a required return of negative 5%[=5-2(10-5)]. Can this be possoble?
At α = 0.10, can the researcher conclude that alcohol consumption is related to sex? What kind of Chi-Square test is this?
Write the null and alternative hypotheses you would use to test the following situation.
Find the probability that the student 's test score is more than 39.8. Find the probability that the student's test score is between 33.5 and 41.9.
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